Should I be concerned ?

I am 38 +5, I am a first time mom so I’m clueless on this. Last week at my appointment baby girl was head down and down by pelvic bone. Today I went for a check up and she is still head down but she came back up. According to Dr. is normal because she is a small baby, or so he said. When I came back home a couple of hours later I had a little of pain and went to the bathroom when I wiped I saw this. Called the office and nurse said not to worry and keep out for any contractions or more bleeding. Should I be concerned, how is could this be a bloody show if she is not in position anymore? She has been active all day so I know she is okay. Also the clinic I go won’t check my dilation until 40 weeks so I don’t know how I’m doing on that. I’ve had Brixton contractions in the past week but they’ve been on and off. Sorry I’m just clueless 🤷🏼‍♀️